The close pals both performed on the bill at the star-studded event but the rapper couldn’t wait to use his phone as they prepared to join the Queen onstage for Charles, Prince of Wales’ closing speech.

Cole tells U.K. talk show host Graham Norton, “I actually had to warn him as we walked on to the stage. He had the phone at the ready. I’m not joking, I had to say to him, ‘Put that phone away right now before I kill you.'”